Prevention of formation of nickel subsulfide in partial oxidatio

Details Prevention of formation of nickel subsulfide in partial oxidatio Prevention of formation of nickel subsulfide in partial oxidatio

1989-04-03

1990-03-20

Mars, Howard T.

Compositions

Gaseous compositions

Carbon-oxide and hydrogen containing

48197R, C01B 322, C01B 324

Patent

active

049099582

ABSTRACT:
A sulfur-containing heavy liquid hydrocarbonaceous fuel and/or solid carbonaceous fuel with a nickel, vanadium, and silicon containing ash is mixed with a silicon-containing material, and a copper and/or cobalt-containing material. The mixture is reacted by partial oxidation in a down-flowing free-flow unobstructed vertical reaction zone with refractory lined walls at a temperature in the range of about 1800.degree. F. to 2900.degree. F. A raw effluent gas stream is produced comprising H.sub.2 +CO and containing entrained slag comprising the following phases: (i) an alloy phase selected from the group consisting fo Cu-Ni, Co-Ni, Cu-Fe, and mixtures thereof; (ii) a silicate phase selected from the group consisting of copper silicate, cobalt silicate, and mixtures thereof; (iii) a spinel phase; and (iv) a fluid oxysulfide phase comprising at least one sulfide from the group consisting of Cu, Co, Fe, and mixtures thereof. There is a reduction in the mole ratio H.sub.2 S+COS/H.sub.2 +CO in the raw effluent gas steam. Non-gaseous materials e.g. slag containing substantially no Ni.sub.3 S.sub.2 are separated from the hot raw effluent gas stream from the gasifier.

REFERENCES:
patent: 4851152 (1989-07-01), Najjar

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